doc/doc-docbook/PageLabelPDF

   1 #! /usr/bin/perl -w
   2
   3 # Program to add page label information to the PDF output file. I have not
   4 # found a way of automatically discovering the number of frontmatter pages
   5 # in the document. It is therefore taken as an argument to be inserted into the
   6 # next statement.
   7
   8 $add = "/PageLabels << /Nums [ 0 << /S /r >>\n" .
   9        "                      $ARGV[0] << /S /D >>\n" .
  10        "                     ]\n" .
  11        "            >>\n";
  12
  13 $extra = length $add;
  14
  15 $before = 0;
  16 while (<STDIN>)
  17   {
  18   print;
  19   $before += length($_);
  20   last if $_ =~ "^<< /Type /Catalog";
  21   }
  22
  23 print $add;
  24
  25 while (<STDIN>)
  26   {
  27   print;
  28   last if $_ =~ /^xref$/;
  29   }
  30
  31 while (<STDIN>)
  32   {
  33   if (/^(\d{10}) (.*)/)
  34     {
  35     my($was) = $1;
  36     my($rest) = $2;
  37     printf "%010d $rest\n", $was + (($was > $before)? $extra : 0);
  38     }
  39   elsif (/^startxref/)
  40     {
  41     print;
  42     $_ = <STDIN>;
  43     if (/^(\d+)/)
  44       {
  45       print $1 + $extra, "\n";
  46       }
  47     else
  48       {
  49       print;
  50       }
  51     }
  52   else
  53     {
  54     print;
  55     }
  56   }
  57
  58 # End
  59
  60